// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.

#pragma once

#include "olap/rowset/segment_v2/inverted_index/query/phrase_query/phrase_positions.h"
#include "olap/rowset/segment_v2/inverted_index/util/priority_queue.h"

namespace doris::segment_v2::inverted_index {

class PhraseQueue : public PriorityQueue<PhrasePositions*> {
public:
    PhraseQueue(size_t size) : PriorityQueue<PhrasePositions*>(size) {}
    ~PhraseQueue() override = default;

    bool less_than(PhrasePositions* pp1, PhrasePositions* pp2) const override {
        if (pp1->_position == pp2->_position) {
            if (pp1->_offset == pp2->_offset) {
                return pp1->_ord < pp2->_ord;
            } else {
                return pp1->_offset < pp2->_offset;
            }
        } else {
            return pp1->_position < pp2->_position;
        }
    }
};

} // namespace doris::segment_v2::inverted_index